6620153 has 8 divisors (see below), whose sum is σ = 6750240. Its totient is φ = 6491520.

The previous prime is 6620101. The next prime is 6620171. The reversal of 6620153 is 3510266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6620153 - 2¹⁶ = 6554617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6620183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13238 + ... + 13728.

It is an arithmetic number, because the mean of its divisors is an integer number (843780).

Almost surely, 2^6620153 is an apocalyptic number.

It is an amenable number.

6620153 is a deficient number, since it is larger than the sum of its proper divisors (130087).

6620153 is a wasteful number, since it uses less digits than its factorization.

6620153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 6620153 is about 2572.9657984513. The cubic root of 6620153 is about 187.7684734746.

The spelling of 6620153 in words is "six million, six hundred twenty thousand, one hundred fifty-three".